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    1. Mentioned In 510 Articles

    2. Choroidal Thickness Analysis in Patients with Usher Syndrome Type 2 Using EDI OCT

      Choroidal Thickness Analysis in Patients with Usher Syndrome Type 2 Using EDI OCT

      To portray Usher Syndrome type 2, analyzing choroidal thickness and comparing data reported in published literature on RP and healthy subjects. Methods . 20 eyes of 10 patients with clinical signs and genetic diagnosis of Usher Syndrome type 2. Each patient underwent a complete ophthalmologic examination including Best Corrected Visual Acuity (BCVA), intraocular pressure (IOP), axial length (AL), automated visual field (VF), and EDI OCT. Both retinal and choroidal measures were measured. Statistical analysis was performed to correlate choroidal thickness with age, BCVA, IOP, AL, VF, and RT. Comparison with data about healthy people and nonsyndromic RP patients was performed. Results ...

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    3. Applying an Open-Source Segmentation Algorithm to Different OCT Devices in Multiple Sclerosis Patients and Healthy Controls: Implications for Clinical Trials

      Applying an Open-Source Segmentation Algorithm to Different OCT Devices in Multiple Sclerosis Patients and Healthy Controls: Implications for Clinical Trials

      Background . The lack of segmentation algorithms operative across optical coherence tomography (OCT) platforms hinders utility of retinal layer measures in MS trials. Objective . To determine cross-sectional and longitudinal agreement of retinal layer thicknesses derived from an open-source, fully-automated, segmentation algorithm, applied to two spectral-domain OCT devices. Methods . Cirrus HD-OCT and Spectralis OCT macular scans from 68 MS patients and 22 healthy controls were segmented. A longitudinal cohort comprising 51 subjects (mean follow-up: 1.4 ± 0.9 years) was also examined. Bland-Altman analyses and interscanner agreement indices were utilized to assess agreement between scanners. Results . Low mean differences (−2.16 to ...

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    4. Evaluation of choroidal thickness via enhanced depth-imaging optical coherence tomography in patients with systemic hypertension

      Evaluation of choroidal thickness via enhanced depth-imaging optical coherence tomography in patients with systemic hypertension

      Purpose: The purpose was to evaluate choroidal thickness via spectral domain optical coherence tomography (SD-OCT) and to compare the data with those of 24-h blood pressure monitoring, elastic features of the aorta, and left ventricle systolic functions, in patients with systemic hypertension. Materials and Methods: This was a case-control, cross-sectional prospective study. A total of 116 patients with systemic hypertension, and 116 healthy controls over 45 years of age, were included. Subfoveal choroidal thickness (SFCT) was measured using a Heidelberg SD-OCT platform operating in the enhanced depth imaging mode. Patients were also subjected to 24-h ambulatory blood pressure monitoring (ABPM ...

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    5. Normative data for macular volume with high-definition spectral-domain optical coherence tomography (Spectralis)

      Normative data for macular volume with high-definition spectral-domain optical coherence tomography (Spectralis)

      To establish normative data for macular volume by spectral-domain optical coherence tomography (SD-OCT) in subjects with no known retinal disease. In an academic institutional setting, 50 subjects (age range 20-84 years) with no known retinal disease, best-corrected visual acuity 20/20, and normal intraocular pressure were enrolled. The subjects were divided into 3 age groups: group 1 included subjects 20-40 years of age, group 2 included subjects 41-60 years of age, and group 3 included subjects 61 years of age and older. All subjects underwent a complete ophthalmologic examination and testing, if needed, to rule out any retinal diseases or ...

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    6. Central corneal thickness determination in corneal edema using ultrasound pachymetry, a Scheimpflug camera, and anterior segment OCT

      Central corneal thickness determination in corneal edema using ultrasound pachymetry, a Scheimpflug camera, and anterior segment OCT
      ...ontrol. Two investigators acquired two measurements each, with the Pentacam (Oculus, Germany) and the AS-OCT (Heidelberg Engineering, Germany) in a randomized order, followed by USP (Tomey SP-100, Germany). CCT was evalu...
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    7. Intraoperative OCT improves ophthalmic surgery

      Intraoperative OCT improves ophthalmic surgery

      The most popular examination method in ophthalmology today is optical coherence tomography (OCT ). Traditionally, OCT examinations have been performed pre- and post-operatively in vitreo-retinal surgery. While this application of the technology has enabled outcomes to be measured and results to be documented, surgeons have not had the ability to incorporate the results to improve surgical treatments. But with considerable advances to OCT—including high-definition OCT (HD OCT), 3D visualization , and adaptive optics —the integration of these methods into the surgical microscope is logical. The technology is now helping ophthalmologists carry out delicate eye surgeries. In today's integrated microscopy systems ...

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    8. Heidelberg Engineering Announces 85,000 Hz OCT2; Next Generation SPECTRALIS OCT Module

      Heidelberg Engineering Announces 85,000 Hz OCT2; Next Generation SPECTRALIS OCT Module
      ...e to achieve another significant improvement in the acquisition speed. Dr. Kester Nahen, Managing Director at Heidelberg Engineering states, Over the last months, our team in Heidelberg was able to increase the scan rate...
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    9. Improved Repeatability of Retinal Thickness Measurements Using Line-Scan Ophthalmoscope Image-Based Retinal Tracking

      Improved Repeatability of Retinal Thickness Measurements Using Line-Scan Ophthalmoscope Image-Based Retinal Tracking
      ...sity of Southern California, Keck School of Medicine, Los Angeles, California. Dr. Sadda is a consultant for Heidelberg Engineering, Carl Zeiss Meditec, and Optos and receives research support from Carl Zeiss Meditec an...
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    10. Automated detection of Schlemm's canal in spectral-domain optical coherence tomography

      Automated detection of Schlemm's canal in spectral-domain optical coherence tomography

      Recent advances in optical coherence tomography (OCT) technology allow in vivo imaging of the complex network of intra-scleral aqueous veins in the anterior segment of the eye. Pathological changes in this network, draining the aqueous humor from the eye, are considered to play a role in intraocular pressure elevation, which can lead to glaucoma, one of the major causes of blindness in the world. Through acquisition of OCT volume scans of the anterior eye segment, we aim at reconstructing the three dimensional network of aqueous veins in healthy and glaucomatous subjects. A novel algorithm for segmentation of the three-dimensional (3D ...

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    11. COLOCALIZATION ERROR BETWEEN THE SCANNING LASER OPHTHALMOSCOPE INFRARED REFLECTANCE AND OPTICAL COHERENCE TOMOGRAPHY IMAGES OF THE HEIDELBERG SPECTRALIS

      COLOCALIZATION ERROR BETWEEN THE SCANNING LASER OPHTHALMOSCOPE INFRARED REFLECTANCE AND OPTICAL COHERENCE TOMOGRAPHY IMAGES OF THE HEIDELBERG SPECTRALIS

      Purpose: To examine the colocalization error between the infrared reflectance (IR) scanning laser ophthalmoscope (SLO) and spectral domain optical coherence tomography (SD-OCT) images of the Heidelberg Spectralis. Methods: The IR and corresponding horizontal raster SD-OCT images were compared in 10 healthy volunteers examined with 3 Heidelberg Spectralis + OCT instruments. The center points of retinal vessels selected by random uniform sampling in scanning laser ophthalmoscope-IR images were compared with colocalizing points in corresponding SD-OCT images by two masked readers. The error of colocalization was measured in the SD-OCT image. The point positions were recorded using Cartesian coordinates measured in microns. The ...

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    12. Binarization of enhanced depth imaging optical coherence tomographic images of an eye with Wyburn-Mason syndrome: a case report

      Binarization of enhanced depth imaging optical coherence tomographic images of an eye with Wyburn-Mason syndrome: a case report

      Background To report a thicker choroid and larger choroidal luminal area in an eye with Wyburn-Mason syndrome. To the best of our knowledge, this is the first report demonstrating an increase in the choroidal thickness and the luminal area in a case of Wyburn-Mason syndrome. In addition, we report the changing appearance of retinal arteriovenous malformations over a 16-year period. Case presentation A 27-year-old woman, who was diagnosed with Wyburn-Mason syndrome at age 11 years, visited our clinic. Her best-corrected visual acuity was 20/12.5 in the right eye and light perception in the left eye. Severely dilated, tortuous ...

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    13. 1-15 of 510 1 2 3 4 ... 32 33 34 »
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  2. About Heidelberg Engineering

    Heidelberg Engineering

    Heidelberg Engineering. Ophthalmology Systems. Heidelberg Engineering has paved the way for quantitative retinal imaging in glaucoma management. The Heidelberg Retina Tomograph was the first instrument of its kind available on the market for the routine glaucoma exam. It follows that Heidelberg Engineering has the longest history and the most experience and knowledge of the subject. The high quality and reproducibility of our products have been proven over time by the accuracy and consistency of glaucoma follow-up exams.
    The reason for this is that Heidelberg Engineering has ensured that there is a solid scientific base to all products.
    The company has always been involved in basic research projects, and our technical knowledge is unsurpassed. Heidelberg Engineering is an extremely innovative company. It is the integrity of research and consistency of approach that enable our products to be used with confidence in the clinical environment. Our track record of product development is exceptional! Look at the development milestones achieved during the past 10 years.

  3. Quotes about Heidelberg Engineering

    1. I am becoming a big fan of spectral-domain OCT, especially Spectralis [Heidelberg Engineering, Vista, Calif.]...To this point with time-domain OCT, I have not been convinced that you can use this technology to follow patients over time. Now, with the faster image acquisition and better axial resolution we see with SD OCT, there is better quantitative peripapillary retinal nerve fiber layer measurement for glaucoma management. The improved accuracy of the OCT segmentation allows for better long-term evaluation of patients.
      Leon W. Herndon in Delving into glaucoma
    2. The concept of Heidelberg Engineering has always been to offer system platforms that customers can expand and upgrade with modules as needed, that are flexible and able grow with the organization...Our strategy to offer sustainable solutions has proven to be highly relevant to customers and it makes sense to follow this pathway with HEYEX PACS. Whether you want to integrate into major IT-infrastructures, interface with Electronic Health Record (EHR) systems, review imaging data from mobile devices or centralize all data; the possibilities will be virtually unlimited. Our goal is to enhance the performance and workflow efficiency of eye care professionals. I am confident that this will translate into better patient care and practice growth.
      Kester Nahen in HEYEX PACS™: The Next Generation Image Management and Device Integration Platform